Principle of Operation of Tank Mixing Eductors

Fig. 258 and Fig. 268 Tank Mixing Eductors are used to agitate liquid, dissolve powdered solids in liquid, and to mix two or more liquids intimately within a tank or other vessel without the use of baffles or moving parts inside the tank. These units take the place of mechanical agitators. Tank Mixing Eductors are operated by a flow of pressure liquid through the nozzle. The motive liquid entrains suction liquid, the two are mixed intimately in the venturi, and the mixture is discharged into the tank. Pressure liquid can be taken from the tank by means of a pump or it can be a new liquid.

Figure 258 Tank Mixing Eductor cutaway available with threaded or plain discharge connection

Figure 258 Tank Mixing Eductor has a removable nozzle and is installed in deep tanks for normal mixing operations.

Figure 268 Tank Mixing Eductor cutaway with threaded connection

Figure 268 Tank Mixing Eductor is used to start mixing from a shallow level or where uniform local agitation is required over large, shallow tank area.

Advantages of Tank Mixing Eductors

Fig. 258 and Fig. 268 Tank Mixing Eductors can augment or replace mechanical agitators. They can be used to introduce and mix a new fluid with an existing fluid. Like other eductors, they are inexpensive and require little maintenance in comparison with the equipment they can replace. This is particularly noticeable in applications requiring special corrosion resistant materials.